Fountain pen



R. WEINGART 1,805,348

FOUNTAIN PEN May 12, 1931.

Filed Sept. 5. 1930 INVENTOR M ATTORNEY Patented May 12, 1931 UNITEDSTATES PATENT OFFICE RICHARD 'WEJ'NGABT, .01 NEW YORK, N. Y., ASSIGNORTO EVEREAIDY PEN COMPANY,

INCL, OF NEW YORK, N. Y., A. CORPORATION OF NEW YORK FOUNTAIN PENApplication filed September 5, 1930. Serial m. 479,887.

This invenion relates to fountain ens, and has for its general object toprovi e an improved adjustable barrel construction whereby at will tocompletely incase the writing nib within the barrel construction.

One object of the invention is the provisionof an incasing coveringconsisting of a pair of cooperative relatively adjustable barrels, eachprovided at the nib end of the pen structure with a plug and a seatopening,

the improvements relating especially to a construction in which, whenthe nib is incased, the plug of each barrel will occupy a positionwithin the seat opening of the other barrel and in such relation thatthe outer surfaces of the two int'erseated plugs will be in smooth flushrelation.

According to a feature of my invention, the plug and seat parts areconstructed and arranged to interfit so as to produce a tight sealingengagement and thus prevent any leakage of ink from the interior of thestructure. For the purpose of producing a nonleak seal, the plug andseat parts are of a 2 substantial thickness or depth, and the barrelsare so connected that in order to efiect the seating and unseating ofthe plugs, one of the barrels must be given a definite lengthwise orlongitudinal movement relatively to the 36) other. This relativelongitudinal movement is important, inasmuch as it makes provision notonly for a liquid-tight seal, but for a movement of an extent suflicientto prevent any contact between the plug parts during rels. By thisarrangement, a deposit of ink from or around the nib upon the innerfaces of the parts cannot be transferred to the outer surface of theouter barrel. With my improved construction, any leakage of ink cannotreach or be carried to, the exposed surface of the incasing barrel. Thefingers I and clothing, therefore, cannot become soiled or daubed withink through handling or carrying the fountain pen structure while theparts thereof are in closed relation.

Another object of the invention is the provision of a construction ofthe character described, in which the cooperating parts, on

manual circular movement to a'given posirelative turning movement of oneof the bartion, will be automatically closed and then be maintained intightly closed relation by an expansion spring. Owin to this provision,the liquid-tight seal is not impaired or broken by jarring the fountainpen structure.

A further object of the invention is the provision of a construction ofthe character described, in which the stock for carrying the writing niband for containing the ink nib can be readily and conveniently removedfor fillin or cleaning purposes.

Ot er objects and advantages of the invention will appear hereinafter.

The invention resides in the improved fountain pen structure, and in theform, construction and relative arrangement of its several parts, aswill be hereinafter more fully described, illustrated in theaccompanying drawings, which forms a material part of this application,and subsequently incorporated in the subjoined claims.

in the drawings, wherein I have illustrated a preferred embodiment ofthe invention as reduced to practice, and in which similar referencecharacters designate corresponding parts throughout the several views JFigure 1 represents a central longitudinal sectional view through myimproved foun- I tain pen, the parts being shown in the relativepositions they occupy when the writing nib is incased, and some of theparts being illustrated as partially broken away;

Fig. 2 is an end elevation, looking toward the right hand end of Fig. 1;

Fig. 3 is a view similar to Fig. 1, but showing the inner barrel and enstock withdrawn to position for eiiecting the rotary movement;

Fig. 4 is a cross section taken on' the line .4-4: of Fig. 3

Fig. 5 is another view similar to Fig. 1, but showing the parts in therelative positions they occupy when the writing nib is protruded;

Fig. 6 is of Fig. 5;

Fig. 7 is a sectional view, showing a modification of a' detail; and

, Fig. 8 represents 'a sectional view on a larger scale showing theshoulder and groove connections for efiecting a tight seal.

a cross section taken on line 6-6 '7 p to the Referring with moreparticularitf desaccompanying drawing, the numera ignates the elongatedstock or bod part of pen for containing the supply 0 ink, and

which at one end thereof, is e nipped with a writing nib 11. The stockor ody and connected writing nib may be of any suitable or up roved formof construction.

y inventon, in its referred form of construction as illustrate in theaccompanying drawing, comprises an adjustable covering for incasing thebody and nib and consists of inner and outer barrels 12 and 13, theinner barrel 13 is made with an end consisting of;

barrel being adjustably fitted upon the body while the outer barrel isadjustably fitted upon the inner barrel. 1

At the nib of the pen structure, the outer a semi-circular plug 14, asemi-circularflange 15 in continuation of the plug, inturned from theend of the barrel, and a semi-circular seating opening 16 between theplug 14 and flange 15 as best shown in Figs. 2 and 8. The end edge ofthe plug 14, where it. defines the diametrical side of the seatingopening'16, is by preference inwardly beveled as shown at 1 Thecorresponding end of the inner barrel 12 is made with plug and seatingparts adapted to interfit with the plug and seating parts of the outerbarrel. Thus it will be seen from an ins ection of the drawing that theinner barrel as asemi-circular plug 18 with the plug 18 in the opening16 and with the plug 14in the opening 19, the outer surfaces or faces ofthe plugs will lie in a smooth and flush relation, as best shown in Fig.8. When the plugs are inter-engaged, as shown in Fig. 8, they form aliquid-tight seal against leakage of ink from the interior of the penstructure to the exterior thereof; For further effecting a liquid-tightsealing engagement, a groove 21 is provided around the plug l at theinner side thereof and along the inner periphery of the barrel 13. Thisgroove has a tapering edge 21. The free end edge 22 of the inner barrelis shaped and t ia pered for seating in the tapered groove e flange 15presents at its inner side a shoulder 23 with which interfits acorresponding shoulder 24 formed for the purpose on the lug'18 of theinner barrel, the-said interfitting shoulders 23 and 2 1 lying in aplane common to the plane in which the end edge 22 of the inner barrelcontacts with the bottom of the groove 21. Through this 66 arrangementof interfitting plug and seating which the plur or inner barrels in adirect lengthwise direction longitudinally of the pen structure.

In the present embodiment, the outer barrel is somewhat longer than theinner barrel and a coil expansion spring 25 is imprisoned between therear end of the inner barrel and an inturned flange 26 at the rear endof the outer barrel, said spring surrounding the body 10 of the pen.ThlS spring normally urges the inner barrel into that position in andseating parts of the two barrels will be firmly interengaged and sealed.The outer barrel is provided with three communicating slots 27, 27, and27 the slots 27 and 27 extending longitudinally of the barrel atopposite sides thereof and communicating at their rear en ds at rightangles with the slot 27 which curves around the barrel for adistance ofsubstantially 180. The inner barrel 12 is provided with twocommunicating slots 28 and 28, the former extending longitudinally ofthis barrel and being of a length substantially equal to the slot 27,while the slot 28 curves around this barrel and is of a lengthsubstantially equal to the slot 27'. Said slots 28 and 28 parts but toprovide a substantial space between the outer face of the plug 18 andinner face of the plug 14, as best shown in Figs. 3 and 5. The purposeof this spacing, as will presently appear, is to prevent at all timesany contact between the outer face of the plug 18' and the inner face ofthe plug 14,

so that ink,'which may be deposited upon the inner face of the plug 14,cannot be transmit-- ted to the outside of the pen structure.

Surrounding the outer barrel 13 for relative adjustment thereon isa ringor sleeve 29 which carries an inwardly extending pin 30 capable ofworking in the slots 27 28, 27 and 27. This pin is removably entered ina circular opening 31 provided for the purpose in the stock or body 10.By this provision the ring 29 and body 10 can together be maintainedstationary or moved, according to the manner in which the parts of thearrangement are manipulated. The outer barrel 13 has an inwardlyprojecting pin 32 capable of, working in the slots 28 and 28.

When the bod and writing nib are incased by the barrels wlth the plugand seating parts of the barrels seated and sealed in interfittingarrangement, as shown in Fig. 1, the ring 29 may be freely moved to theleft so as to move the body and inner barrel to the left, forcingcompression of the spring 25. This movement to the left not only unseatsthe plug 18, but spaces it a considerable distance from its seat and atthe same time brings the pin 30 into alignment with the circular slot27, and itfurther brings the circular slot 28' into alignment with thepin 32. The several parts are thus brought into position for the rotaryoperation. The unseating operation and consequent alignment of the pins30 and 32 with their respective circular slots may be accomplished withequal facility in another way, namely, by holding the ring 29 and movingthe outer barrel to the right, which operation results in compressingthe spring 25 and in aligning the slots 27 and 28 with their respectivepins 30 and 32.

Having moved the parts into the relative positions shown in Fig. 3, thenext operation (following the mode of operation illustrated in thedrawing) is to grasp the ring 29 and hold it stationary while turningthe outer barrel 13 180 so as to bring the plug 14: in front of the plug18 and the seat opening 17 in alignment with the seat opening 19. Sincethe body 10 and ring 29 are connected by the pin 30, the former remainsstationary with the ring, while the pin 32, attached to the outer barrel13, moves through the circular slot 28'. The outerbarrel, in thus beingrotated, turns between the ring 29 and the inner barrel 12 and itscircular slot 27 turns on the pin 30. This turning operationbrings thelongitudinal slot 27 in the outer barrel into registry with thelongitudinal slot 28 in the inner barrel. Manifestly, this turningoperation may be accomplished in another way, namely, by holding theouter barrel 13 stationary while turning the ring and consequently theinner barrel and'body 180, so as to bring the longitudinal slot 28 ofthe inner barrel into registry with the longitudinal'slot 27 of theouter barrel.

When the longitudinal slots 27 and 28 of the inner and outer barrelshave been brought into regimry, the seat openings 17 and 19 will be 'inregistry, so that by moving the ring forwardly (or the outer barrelrearwardly) the writing nib 11 will be projected through the two alignedseat openings 17 and 19 into position for writing as shown in Fig. 5.

To incase the writing nib, it is necessary only to reversetheoperations. The pin is moved to the rear of the longitudinal slots 27and 28, that is to say, to the position in which 'it will enter thecircular slot 27 Manifestly, this may be accomplished either by movingthe ring rearwardly or by moving the outer barrel forwardly. Thenecessary circular operation is then efiected, either by rotating thering or the outer barrel through the distance permitted by the circularslots 27" and 28', so as to bring the pin 30 into the slot 2 and the pin32 into the slot 28. Thereupon the compression spring 25 willautomatically force the relative longitudinal movements of the parts toseat and seal the plugs 18 and 14 in their respective seating beveled asat 34 so as to receive thereunder the finger nail or any suitablypointer instrument, whereby to be lifted outwardly from the ring so asto lift the pin 30 from the circular opening 31. When the pin has thusbeen withdrawn from the opening 31, the body 10 with the writing nibattached may be withdrawn. Before 30 from the opening 31, it is best tomove the ring into the position shown in Fig. 3, in which position therear end of the body 10 will project, for ready seizure by the fingers,beyond the corresponding end of the outer barrel.

In Fig. 7 I illustrate a modification in the mode of providing aliquid-tight seal between the free edges of the plugs 18 and 1a. Thecooperating free edges of the plugs, instead of being beveled ortapered, may be provided with interlocking tongues and grooves 35 and36, capable of being engaged and disengaged under lengthwise movement ofone of the barrels in a direction longitudinally of the pen structure.

While I have shown in the present instance apreferred manner ofconnecting the body and outer and inner barrels, it is to be understoodthat in the broad scope of my inven tion, these connections may belocated and spaced in any desired manner and still be within the scopeof my invention.

The terms and expressions employed are used as terms of description andnot of limitation, and T have no intention, in the use of such terms andexpressions, of excluding any mechanical equivalents of thefeaturesshown and described, or portions thereof, but recognize that variousstructural modifications are possible within the scope of the inventionclaimed.

1 claim 1. A. fountain pen the body and nib of which are provided with acovering consisting of a pair of barrels connected for rela tivelongitudinal movement, each of said barrels at the nib end of the penincluding a lug and aseat openin the plug of each barrel being shaped tofit into and .efiect a seal with the seat opehing of the otherbarwithdrawing the pinso or free end of this spring clip is preferably 7(ill rel, said lugs being insertable in and reto fit into and e ect aseal with the seat opening of the other barrel, said plugs beinglnsertable in and removable from the seat openings on the definitelongitudinal movement of the barrel, said seat openings being shaped soas to be aligned one with the other to produce an outlet opening for thenib on the definite circular movement of the barrel.

3. A fountain pen the body and nib of which are provided with a coveringconsisting of a pair of barrels, a connection between the barrels andbody arranged to allow first a definite longitudinal movement and then adefinite circular movement of one of the barrels, each of said barrelsat the nib end of the pen including a plug and a seat opening, the plugof each barrel being shaped to fit into and effect a seal withthe seatopening of the other barrel, said plugs being insertable.

in and removable from the seatopenings on the definite longitudinalmovement of the barrel, said seat openings being shaped so as to bealigned one with the other to produce an outlet for the nib on thedefinite circularmovement of the barrel, means to afford and maintain alocking connection between the barrels when the seat openings arealigned,

and means associated with said connection whereby to move the body andnib relatively to the barrels to project the nib said outlet. I

4. A fountain pen, having a body and a nib, characterized by includingouter and inner barrels for incasing the body and nib,

out of said barrels including at the nib'end of the.

pen, interfitting plug and seat'parts adapted for seating and unseatingaction on movement of one of the barrels lengthwise of the pen, a ringloosely fitting the outer barrel and connected with the body by a pin,both of the barrels having slots therein in which the pin barrel, saidslots and pins providing for the movement of one of the barrelslongitudinally to unseat the plugs and then. circularly to align theseats, said fixed pin in the outer barrel provided for locking thebarrels toplug and a seat opening, the plug of each barrel being shapedto fit into and, efiect a seal with the seat opening of the otherbarrel, and a spring imprisoned between the barrels and normally tendingto move them in a longitudinal direction to insert and seal the plugs inthe seat openings, said spring being compremible between the barrels topermit removal in a longitudinal direction of the plugs from the seatopenings.

6. A fountain pen, having a body and a nib, characterized by including apair of barrels for incasing the body and the nib, said barrelsincluding at the nib end of the pen interfitting plug and seat partsadapted for seating and unseat-ing action on movement of one of thebarrels lengthwise of the pen, said seats being adapted for alignment toprovide an opening for thenibon movement of one of the barrelscircularly of the pen, pin and slot connections between said barrels to.control said longitudinal movements and said circular movement, eachindependently of the other, one of said pins being connected with thebody to allow relative longitudinal movement between the barrels and thebody for the projection of the nib out of the opening provided by theali ed seats, and a resilient member imprisone between the barrels.

7.IIn a fountain pen, embodyin containing body with a writing ni apairlbs an ink of incasing members for said body and fiib, I

provided at the nib end of the pen with lnterfitting plug and seatparts, said seat parts including seat openings for the plugs and saidplug and seat parts being constructed and arranged for seating andunseating action on movement of one member in'a direction lengthwise ofthe other of the members, means by which to move one of the memberslengthwise of the other of the members, means by which to rotate one ofthe members to align said openings for the projection of the nibther'ethrough, and means by which tolmove said body lengthwise andindependently of said members.

and outer incasing members for said body ,and nib, provided at the nibend of the pen with interfitting "plug and seat parts, said plug andseat parts .being constructed and arranged for seating and unseatingaction on movement of one of the members in a neceeee directionlengthwise of the other of the memhers, e connection between saidmembers and connection,

Mtween said members, arranged to the other 0 the members, and n

